I have balboa vkv500 circuit - control board. Motor keeps turning on and off and sound like it's locked. I have checked motor and seems to be fine. Is it control - circuit problem? Thanks for any pointers.
Dan

ps Tried to post earlier but first post doesn't show up on the board. If this is double post I do appologise.

OK, this make no sense to me: on circuit board there is no black or burn marks. Part I don't understand is voltage output to the motor pump. My understanding is that output voltage for motor pump should be as follows:
between red and black = 240
between white and black = 120
between white and red = 120

What I am getting is:

between white and red =240
between white and black = 240
between green and white = 120
between green and black = 120
between green and red = 120

No one switch phases at a main panel and I can't see hydro co. switched phases cuz it would affect everything.